from typing import Final


class WhereOpSymbol(object):
    """
    chroma where 逻辑操作符号
    """
    AND: Final[str] = '$and'
    OR: Final[str] = '$or'
    IN: Final[str] = '$in'
    NIN: Final[str] = '$nin'
    EQ: Final[str] = '$eq'
    NE: Final[str] = '$ne'
    GT: Final[str] = '$gt'